.TH "QwtThermo" 3 "Fri Apr 15 2011" "Version 6.0.0" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtThermo \- 
.PP
The Thermometer Widget.  

.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_thermo.h>\fP
.PP
Inherits \fBQwtAbstractScale\fP.
.SS "Public Types"

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.ti -1c
.RI "enum \fBScalePos\fP { \fBNoScale\fP, \fBLeftScale\fP, \fBRightScale\fP, \fBTopScale\fP, \fBBottomScale\fP }"
.br
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.SS "Public Slots"

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.RI "virtual void \fBsetValue\fP (double val)"
.br
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.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBQwtThermo\fP (QWidget *parent=NULL)"
.br
.ti -1c
.RI "virtual \fB~QwtThermo\fP ()"
.br
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.RI "void \fBsetOrientation\fP (Qt::Orientation, \fBScalePos\fP)"
.br
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.RI "void \fBsetScalePosition\fP (\fBScalePos\fP s)"
.br
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.RI "\fBScalePos\fP \fBscalePosition\fP () const "
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.RI "void \fBsetSpacing\fP (int)"
.br
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.RI "int \fBspacing\fP () const "
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.RI "void \fBsetBorderWidth\fP (int w)"
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.RI "int \fBborderWidth\fP () const "
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.RI "void \fBsetFillBrush\fP (const QBrush &b)"
.br
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.RI "const QBrush & \fBfillBrush\fP () const "
.br
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.RI "void \fBsetAlarmBrush\fP (const QBrush &b)"
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.RI "const QBrush & \fBalarmBrush\fP () const "
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.RI "void \fBsetAlarmLevel\fP (double v)"
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.RI "double \fBalarmLevel\fP () const "
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.RI "void \fBsetAlarmEnabled\fP (bool tf)"
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.RI "bool \fBalarmEnabled\fP () const "
.br
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.RI "void \fBsetColorMap\fP (\fBQwtColorMap\fP *)"
.br
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.RI "\fBQwtColorMap\fP * \fBcolorMap\fP ()"
.br
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.RI "const \fBQwtColorMap\fP * \fBcolorMap\fP () const "
.br
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.RI "void \fBsetPipeWidth\fP (int w)"
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.RI "int \fBpipeWidth\fP () const "
.br
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.RI "void \fBsetRangeFlags\fP (\fBQwtInterval::BorderFlags\fP)"
.br
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.RI "\fBQwtInterval::BorderFlags\fP \fBrangeFlags\fP () const "
.br
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.RI "void \fBsetMaxValue\fP (double v)"
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.RI "double \fBmaxValue\fP () const "
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.RI "void \fBsetMinValue\fP (double v)"
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.RI "double \fBminValue\fP () const "
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.RI "double \fBvalue\fP () const "
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.RI "void \fBsetRange\fP (double vmin, double vmax, bool lg=false)"
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.RI "virtual QSize \fBsizeHint\fP () const "
.br
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.RI "virtual QSize \fBminimumSizeHint\fP () const "
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.RI "void \fBsetScaleDraw\fP (\fBQwtScaleDraw\fP *)"
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.RI "const \fBQwtScaleDraw\fP * \fBscaleDraw\fP () const "
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.SS "Protected Member Functions"

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.RI "virtual void \fBdrawLiquid\fP (QPainter *, const QRect &) const "
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.RI "virtual void \fBscaleChange\fP ()"
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.RI "virtual void \fBpaintEvent\fP (QPaintEvent *)"
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.RI "virtual void \fBresizeEvent\fP (QResizeEvent *)"
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.RI "virtual void \fBchangeEvent\fP (QEvent *)"
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.RI "\fBQwtScaleDraw\fP * \fBscaleDraw\fP ()"
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.RI "QRect \fBpipeRect\fP () const "
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.SH "Detailed Description"
.PP 
The Thermometer Widget. 

\fBQwtThermo\fP is a widget which displays a value in an interval. It supports:
.IP "\(bu" 2
a horizontal or vertical layout;
.IP "\(bu" 2
a range;
.IP "\(bu" 2
a scale;
.IP "\(bu" 2
an alarm level.
.PP
.PP
.PP
The fill colors might be calculated from an optional color map If no color map has been assigned \fBQwtThermo\fP uses the following colors/brushes from the widget palette:
.PP
.IP "\(bu" 2
QPalette::Base Background of the pipe
.IP "\(bu" 2
QPalette::ButtonText Fill brush below the alarm level
.IP "\(bu" 2
QPalette::Highlight Fill brush for the values above the alarm level
.IP "\(bu" 2
QPalette::WindowText For the axis of the scale
.IP "\(bu" 2
QPalette::Text For the labels of the scale
.PP
.PP
By default, the scale and range run over the same interval of values. \fBQwtAbstractScale::setScale()\fP changes the interval of the scale and allows easy conversion between physical units.
.PP
The example shows how to make the scale indicate in degrees Fahrenheit and to set the value in degrees Kelvin: 
.PP
.nf
#include <QtWidgets/qapplication.h>
#include <qwt_thermo.h>

double Kelvin2Fahrenheit(double kelvin)
{
    // see http://en.wikipedia.org/wiki/Kelvin
    return 1.8*kelvin - 459.67;
}

int main(int argc, char **argv)
{
    const double minKelvin = 0.0;
    const double maxKelvin = 500.0;

    QApplication a(argc, argv);
    QwtThermo t;
    t.setRange(minKelvin, maxKelvin);
    t.setScale(Kelvin2Fahrenheit(minKelvin), Kelvin2Fahrenheit(maxKelvin));
    // set the value in Kelvin but the scale displays in Fahrenheit
    // 273.15 Kelvin = 0 Celsius = 32 Fahrenheit
    t.setValue(273.15);
    a.setMainWidget(&t);
    t.show();
    return a.exec();
}

.fi
.PP

.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBQwtThermo::ScalePos\fP"Scale position. \fBQwtThermo\fP tries to enforce valid combinations of its orientation and scale position:
.PP
.IP "\(bu" 2
Qt::Horizonal combines with NoScale, TopScale and BottomScale
.IP "\(bu" 2
Qt::Vertical combines with NoScale, LeftScale and RightScale
.PP
.PP
\fBSee also:\fP
.RS 4
\fBsetOrientation()\fP, \fBsetScalePosition()\fP 
.RE
.PP

.PP
\fBEnumerator: \fP
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.TP
\fB\fINoScale \fP\fP
No scale. 
.TP
\fB\fILeftScale \fP\fP
The scale is left of the pipe. 
.TP
\fB\fIRightScale \fP\fP
The scale is right of the pipe. 
.TP
\fB\fITopScale \fP\fP
The scale is above the pipe. 
.TP
\fB\fIBottomScale \fP\fP
The scale is below the pipe. 
.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtThermo::QwtThermo (QWidget *parent = \fCNULL\fP)\fC [explicit]\fP"Constructor 
.PP
\fBParameters:\fP
.RS 4
\fIparent\fP Parent widget 
.RE
.PP

.SS "QwtThermo::~QwtThermo ()\fC [virtual]\fP"
.PP
Destructor. 
.SH "Member Function Documentation"
.PP 
.SS "const QBrush & QwtThermo::alarmBrush () const"Return the liquid brush ( QPalette::Highlight ) above the alarm threshold. 
.PP
\fBSee also:\fP
.RS 4
\fBsetAlarmBrush()\fP, QWidget::palette()
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "bool QwtThermo::alarmEnabled () const"\fBReturns:\fP
.RS 4
True, when the alarm threshold is enabled.
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "double QwtThermo::alarmLevel () const"Return the alarm threshold. 
.PP
\fBSee also:\fP
.RS 4
\fBsetAlarmLevel()\fP
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "int QwtThermo::borderWidth () const"Return the border width of the thermometer pipe. 
.PP
\fBSee also:\fP
.RS 4
\fBsetBorderWidth()\fP 
.RE
.PP

.SS "void QwtThermo::changeEvent (QEvent *event)\fC [protected, virtual]\fP"Qt change event handler 
.PP
\fBParameters:\fP
.RS 4
\fIevent\fP Event 
.RE
.PP

.SS "\fBQwtColorMap\fP * QwtThermo::colorMap ()"\fBReturns:\fP
.RS 4
Color map for the fill color 
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "const \fBQwtColorMap\fP * QwtThermo::colorMap () const"\fBReturns:\fP
.RS 4
Color map for the fill color 
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "void QwtThermo::drawLiquid (QPainter *painter, const QRect &pipeRect) const\fC [protected, virtual]\fP"Redraw the liquid in thermometer pipe. 
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.br
\fIpipeRect\fP Bounding rectangle of the pipe without borders 
.RE
.PP

.SS "const QBrush & QwtThermo::fillBrush () const"Return the liquid ( QPalette::ButtonText ) brush. 
.PP
\fBSee also:\fP
.RS 4
\fBsetFillBrush()\fP, QWidget::palette() 
.RE
.PP

.SS "double QwtThermo::maxValue () const"
.PP
Return the maximum value. 
.SS "QSize QwtThermo::minimumSizeHint () const\fC [virtual]\fP"
.PP
Return a minimum size hint. \fBWarning:\fP
.RS 4
The return value depends on the font and the scale. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsizeHint()\fP 
.RE
.PP

.SS "double QwtThermo::minValue () const"
.PP
Return the minimum value. 
.SS "void QwtThermo::paintEvent (QPaintEvent *event)\fC [protected, virtual]\fP"Qt paint event. 
.PP
\fBParameters:\fP
.RS 4
\fIevent\fP Paint event 
.RE
.PP

.SS "QRect QwtThermo::pipeRect () const\fC [protected]\fP"\fBReturns:\fP
.RS 4
Bounding rectangle of the pipe ( without borders ) in widget coordinates 
.RE
.PP

.SS "int QwtThermo::pipeWidth () const"Return the width of the pipe. 
.PP
\fBSee also:\fP
.RS 4
\fBsetPipeWidth()\fP 
.RE
.PP

.SS "\fBQwtInterval::BorderFlags\fP QwtThermo::rangeFlags () const"\fBReturns:\fP
.RS 4
Range flags 
.RE
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\fBSee also:\fP
.RS 4
\fBsetRangeFlags()\fP 
.RE
.PP

.SS "void QwtThermo::resizeEvent (QResizeEvent *event)\fC [protected, virtual]\fP"Qt resize event handler 
.PP
\fBParameters:\fP
.RS 4
\fIevent\fP Resize event 
.RE
.PP

.SS "void QwtThermo::scaleChange ()\fC [protected, virtual]\fP"
.PP
Notify a scale change. 
.PP
Reimplemented from \fBQwtAbstractScale\fP.
.SS "const \fBQwtScaleDraw\fP * QwtThermo::scaleDraw () const"\fBReturns:\fP
.RS 4
the scale draw of the thermo 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetScaleDraw()\fP 
.RE
.PP

.SS "\fBQwtScaleDraw\fP * QwtThermo::scaleDraw ()\fC [protected]\fP"\fBReturns:\fP
.RS 4
the scale draw of the thermo 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetScaleDraw()\fP 
.RE
.PP

.SS "\fBQwtThermo::ScalePos\fP QwtThermo::scalePosition () const"Return the scale position. 
.PP
\fBSee also:\fP
.RS 4
\fBsetScalePosition()\fP 
.RE
.PP

.SS "void QwtThermo::setAlarmBrush (const QBrush &brush)"
.PP
Specify the liquid brush above the alarm threshold. Changes the QPalette::Highlight brush of the palette.
.PP
\fBParameters:\fP
.RS 4
\fIbrush\fP New brush. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBalarmBrush()\fP, QWidget::setPalette()
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "void QwtThermo::setAlarmEnabled (booltf)"
.PP
Enable or disable the alarm threshold. \fBParameters:\fP
.RS 4
\fItf\fP true (disabled) or false (enabled)
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "void QwtThermo::setAlarmLevel (doublelevel)"Specify the alarm threshold.
.PP
\fBParameters:\fP
.RS 4
\fIlevel\fP Alarm threshold 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBalarmLevel()\fP
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "void QwtThermo::setBorderWidth (intwidth)"Set the border width of the pipe. 
.PP
\fBParameters:\fP
.RS 4
\fIwidth\fP Border width 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBborderWidth()\fP 
.RE
.PP

.SS "void QwtThermo::setColorMap (\fBQwtColorMap\fP *colorMap)"
.PP
Assign a color map for the fill color. \fBParameters:\fP
.RS 4
\fIcolorMap\fP Color map 
.RE
.PP
\fBWarning:\fP
.RS 4
The alarm threshold has no effect, when a color map has been assigned 
.RE
.PP

.SS "void QwtThermo::setFillBrush (const QBrush &brush)"
.PP
Change the brush of the liquid. Changes the QPalette::ButtonText brush of the palette.
.PP
\fBParameters:\fP
.RS 4
\fIbrush\fP New brush. 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBfillBrush()\fP, QWidget::setPalette() 
.RE
.PP

.SS "void QwtThermo::setMaxValue (doublemaxValue)"Set the maximum value.
.PP
\fBParameters:\fP
.RS 4
\fImaxValue\fP Maximum value 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBmaxValue()\fP, \fBsetMinValue()\fP, \fBsetRange()\fP 
.RE
.PP

.SS "void QwtThermo::setMinValue (doubleminValue)"Set the minimum value.
.PP
\fBParameters:\fP
.RS 4
\fIminValue\fP Minimum value 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBminValue()\fP, \fBsetMaxValue()\fP, \fBsetRange()\fP 
.RE
.PP

.SS "void QwtThermo::setOrientation (Qt::Orientationo, \fBScalePos\fPs)"
.PP
Set the thermometer orientation and the scale position. The scale position NoScale disables the scale. 
.PP
\fBParameters:\fP
.RS 4
\fIo\fP orientation. Possible values are Qt::Horizontal and Qt::Vertical. The default value is Qt::Vertical. 
.br
\fIs\fP Position of the scale. The default value is NoScale.
.RE
.PP
A valid combination of scale position and orientation is enforced:
.IP "\(bu" 2
a horizontal thermometer can have the scale positions TopScale, BottomScale or NoScale;
.IP "\(bu" 2
a vertical thermometer can have the scale positions LeftScale, RightScale or NoScale;
.IP "\(bu" 2
an invalid scale position will default to NoScale.
.PP
.PP
\fBSee also:\fP
.RS 4
\fBsetScalePosition()\fP 
.RE
.PP

.SS "void QwtThermo::setPipeWidth (intwidth)"Change the width of the pipe.
.PP
\fBParameters:\fP
.RS 4
\fIwidth\fP Width of the pipe 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBpipeWidth()\fP 
.RE
.PP

.SS "void QwtThermo::setRange (doubleminValue, doublemaxValue, boollogarithmic = \fCfalse\fP)"
.PP
Set the range. \fBParameters:\fP
.RS 4
\fIminValue\fP value corresponding lower or left end of the thermometer 
.br
\fImaxValue\fP value corresponding to the upper or right end of the thermometer 
.br
\fIlogarithmic\fP logarithmic mapping, true or false 
.RE
.PP

.SS "void QwtThermo::setRangeFlags (\fBQwtInterval::BorderFlags\fPflags)"
.PP
Exclude/Include min/max values. According to the flags \fBminValue()\fP and \fBmaxValue()\fP are included/excluded from the pipe. In case of an excluded value the corresponding tick is painted 1 pixel off of the \fBpipeRect()\fP.
.PP
F.e. when a minimum of 0.0 has to be displayed as an empty pipe the \fBminValue()\fP needs to be excluded.
.PP
\fBParameters:\fP
.RS 4
\fIflags\fP Range flags 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBrangeFlags()\fP 
.RE
.PP

.SS "void QwtThermo::setScaleDraw (\fBQwtScaleDraw\fP *scaleDraw)"
.PP
Set a scale draw. For changing the labels of the scales, it is necessary to derive from \fBQwtScaleDraw\fP and overload \fBQwtScaleDraw::label()\fP.
.PP
\fBParameters:\fP
.RS 4
\fIscaleDraw\fP ScaleDraw object, that has to be created with new and will be deleted in ~QwtThermo or the next call of \fBsetScaleDraw()\fP. 
.RE
.PP

.SS "void QwtThermo::setScalePosition (\fBScalePos\fPscalePos)"
.PP
Change the scale position (and thermometer orientation). \fBParameters:\fP
.RS 4
\fIscalePos\fP Position of the scale.
.RE
.PP
A valid combination of scale position and orientation is enforced:
.IP "\(bu" 2
if the new scale position is LeftScale or RightScale, the scale orientation will become Qt::Vertical;
.IP "\(bu" 2
if the new scale position is BottomScale or TopScale, the scale orientation will become Qt::Horizontal;
.IP "\(bu" 2
if the new scale position is NoScale, the scale orientation will not change.
.PP
.PP
\fBSee also:\fP
.RS 4
\fBsetOrientation()\fP, \fBscalePosition()\fP 
.RE
.PP

.SS "void QwtThermo::setSpacing (intspacing)"
.PP
Change the spacing between pipe and scale. A spacing of 0 means, that the backbone of the scale is below the pipe.
.PP
The default setting is 3 pixels.
.PP
\fBParameters:\fP
.RS 4
\fIspacing\fP Number of pixels 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBspacing()\fP; 
.RE
.PP

.SS "void QwtThermo::setValue (doublevalue)\fC [virtual, slot]\fP"Set the current value.
.PP
\fBParameters:\fP
.RS 4
\fIvalue\fP New Value 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBvalue()\fP 
.RE
.PP

.SS "QSize QwtThermo::sizeHint () const\fC [virtual]\fP"\fBReturns:\fP
.RS 4
the minimum size hint 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBminimumSizeHint()\fP 
.RE
.PP

.SS "int QwtThermo::spacing () const"\fBReturns:\fP
.RS 4
Number of pixels between pipe and scale 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetSpacing()\fP 
.RE
.PP

.SS "double QwtThermo::value () const"
.PP
Return the value. 

.SH "Author"
.PP 
Generated automatically by Doxygen for Qwt User's Guide from the source code.
